a:

pkgs/warp/update.sh

@@ -0,0 +1,74 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p cacert curl jq nix moreutils --pure
+#shellcheck shell=bash
+set -eu -o pipefail
+
+dirname="$(dirname "$0")"
+
+err() {
+    echo "$*" >&2
+    exit 1
+}
+
+json_get() {
+    jq -r "$1" < "$dirname/versions.json"
+}
+
+json_set() {
+    jq --arg x "$2" "$1 = \$x" < "$dirname/versions.json" | sponge "$dirname/versions.json"
+}
+
+resolve_url() {
+    local pkg sfx url
+    local -i i max_redirects
+    case "$1" in
+        darwin)
+            pkg=macos
+            sfx=dmg
+            ;;
+        linux)
+            pkg=pacman
+            sfx=pkg.tar.zst
+            ;;
+        *)
+            err "Unexpected download type: $1"
+            ;;
+    esac
+    url="https://app.warp.dev/download?package=${pkg}"
+    ((max_redirects = 15))
+    for ((i = 0; i < max_redirects; i++)); do
+        url=$(curl -s -o /dev/null -w '%{redirect_url}' "${url}")
+        [[ ${url} != *.${sfx} ]] || break
+    done
+    ((i < max_redirects)) || { err "too many redirects"; }
+    echo "${url}"
+}
+
+get_version() {
+    echo "$1" | grep -oP -m 1 '(?<=/v)[\d.\w]+(?=/)'
+}
+
+# nix-prefect-url seems to be uncompressing the archive then taking the hash
+# so just get the hash from fetchurl
+sri_get() {
+    local ouput sri
+    output=$(nix-build  --expr \
+        'with import <nixpkgs>{};
+         fetchurl {
+           url = "'"$1"'";
+         }' 2>&1 || true)
+    sri=$(echo "$output" | awk '/^\s+got:\s+/{ print $2 }')
+    [[ -z "$sri" ]] && err "$output"
+    echo "$sri"
+}
+
+
+for sys in darwin linux; do
+    url=$(resolve_url ${sys})
+    version=$(get_version "${url}")
+    if [[ ${version} != "$(json_get ".${sys}.version")" ]]; then
+        sri=$(sri_get "${url}")
+        json_set ".${sys}.version" "${version}"
+        json_set ".${sys}.hash" "${sri}"
+    fi
+done